- ...that the saliva of a common garter snake may be toxic to amphibians and other small animals?
- ... that the rough-scaled sea snake is highly venomous and every scale on its body is adorned with a spine?
- ... that the Late Cretaceous madtsoiid snake Menarana had several adaptations for head-first burrowing, but its large size may have made burrowing difficult or impossible?
- ... that mole snakes can inflict serious bite wounds, but nonetheless are said to make good pets?
- ...that pit vipers and some boas and pythons have specialized facial pits for sensing infrared radiation?